Mailing Issues

I’ve come across an issue where one of my clients suddenly stopped receiving emails from his website contact form.  Checking various blacklists can sometimes result in the solution: https://www.spamhaus.org/lookup/ http://www.abuseat.org/lookup.cgi However, in this case, the client manages his own domain and mail.  The zone file for the domain in question looks like this: A “mail”…

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Analyze Your Disk Space

I recently ran out of disk space and wanted to find out for sure what would be the biggest bang-for-the-buck to archive onto an external drive.  Came across TreeSize.  It has a free option and some paid options.  The free option seems to be sufficient for my needs.  Choose a folder and get metrics in…

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Getting Started with Blender

Although I mentioned in an earlier article that there were no good and easy-to-find tutorials, I did finally find one.  It’s by CgCookie and comes in multiple parts.  The first part, which largely covers the interface is free for anyone.  All other parts can be seen with a paid subscription. Blender Basics There is also…

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Working with Flora

Flora is the name given to Adafruit’s “wearable” microcontroller.  What it really means is that it has some large holes that can be used for sewing to clothing and such.  Adafruit provides a number of lessons, one of which introduces you to this tech. https://learn.adafruit.com/getting-started-with-flora If you are already familiar with Arduino or similar, you…

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First thoughts on OpenSCAD

SketchUp is what I have been terming the “Programmer’s Maya”.  But I just came across a modeling program that truly deserves that title – OpenSCAD. OpenSCAD is pretty much only useful for 3D prints – you would not want to use it for modeling a room, for example. It works well for objects that can…

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